• Monarch butterflies are in decline largely because of habitat degradation, including in the Monarch Butterfly Biosphere Reserve in the forested mountains of Central Mexico.
• Researchers looked at aerial and satellite photography of forest cover in the Reserve over 50 years, assessing the impact of the Reserve’s protective decrees on logging.
• They found that implementation of logging bans worked well when the local community was consulted and compensated, and poorly when done without their involvement.